/* Schriften lokal (SIL Open Font License, siehe assets/fonts) */
@font-face { font-family: "Manrope"; font-style: normal; font-weight: 200 800; font-display: swap; src: url("../fonts/manrope-latin-wght-normal.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Manrope"; font-style: normal; font-weight: 200 800; font-display: swap; src: url("../fonts/manrope-latin-ext-wght-normal.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 500 800; font-display: swap; src: url("../fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2"); }

/* Heizlösungen – Stil "Clean"
   Layout: ruhige helle Flächen, weiche Karten, ein warmes Kupfer-Orange als einziger Akzent. */

:root {
  --bg: #F5F7FA; --surface: #FFFFFF; --ink: #333E48; --muted: #5E6873; --line: #E4E8EE; --line-strong: #C9D1DB;
  --heat: #DB3A00; --heat-hover: #C23300; --heat-ink: #FFFFFF; --heat-soft: #FFE9DF; --heat-text: #B23A0A;
  --steel: #A3ADBA; --steel-dark: #586274;
  --badge-yellow: #F6B332; --badge-red: #E12726; --hatch-bg: #FEF1D6;
  --ok: #15803D; --ok-soft: #E3F6EA; --warn: #B45309; --warn-soft: #FEF3E2; --err: #C62828; --err-soft: #FDE8E8;
  --display: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --r: 10px; --r-lg: 16px;
  --shadow: 0 1px 2px rgba(11,18,32,.04), 0 10px 30px rgba(11,18,32,.07);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A0F17; --surface: #111925; --ink: #E8EEF6; --muted: #8D99AA; --line: #1E2937; --line-strong: #2E3B4D;
    --heat: #FF6A33; --heat-hover: #FF8452; --heat-ink: #140803; --heat-soft: #33190E; --heat-text: #FF7A45;
    --steel: #5B6879; --steel-dark: #A5B1C0; --hatch-bg: #33190E; --badge-red: #FF6A55;
    --ok: #4ADE80; --ok-soft: #0F2A1B; --warn: #FBBF24; --warn-soft: #2E2410; --err: #F87171; --err-soft: #341616;
    --shadow: 0 1px 0 rgba(255,255,255,.03), 0 10px 30px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0A0F17; --surface: #111925; --ink: #E8EEF6; --muted: #8D99AA; --line: #1E2937; --line-strong: #2E3B4D;
  --heat: #FF6A33; --heat-hover: #FF8452; --heat-ink: #140803; --heat-soft: #33190E; --heat-text: #FF7A45;
  --steel: #5B6879; --steel-dark: #A5B1C0; --hatch-bg: #33190E; --badge-red: #FF6A55;
  --ok: #4ADE80; --ok-soft: #0F2A1B; --warn: #FBBF24; --warn-soft: #2E2410; --err: #F87171; --err-soft: #341616;
  --shadow: 0 1px 0 rgba(255,255,255,.03), 0 10px 30px rgba(0,0,0,.35);
  color-scheme: dark;
}

/* ---------- Grundlagen ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--body); font-size: 16px; line-height: 1.6;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; margin: 0; text-wrap: balance; letter-spacing: -.02em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--heat); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: var(--r); z-index: 100; }
.skip:focus { top: 12px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

.wrap {
  max-width: 1200px; margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.section { padding-block: 64px; }
.section-tight { padding-block: 40px; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 12px 24px; margin-bottom: 28px; }
.section-head h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; }
.section-head p { color: var(--muted); max-width: 56ch; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--heat-text); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 30px; height: 30px; border-radius: 9px; background: var(--heat); position: relative; flex: none; }
.brand-mark::after { content: ""; position: absolute; left: 6px; right: 6px; top: 12px; height: 6px; border-radius: 3px; background: var(--heat-ink); }
.brand-name { font-family: var(--display); font-weight: 800; font-size: 21px; letter-spacing: -.02em; }
.brand-name span { color: var(--heat-text); }
.brand small { color: var(--muted); font-size: 12.5px; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: 15px; padding: 9px 12px; border-radius: 999px; }
.main-nav a:hover { color: var(--ink); background: var(--surface); }
.main-nav a[aria-current="page"] { color: var(--ink); background: var(--surface); box-shadow: var(--shadow); }
.main-nav .nav-cta { background: var(--ink); color: var(--bg); margin-left: 6px; display: inline-flex; align-items: center; gap: 8px; }
.main-nav .nav-cta:hover, .main-nav .nav-cta[aria-current="page"] { background: var(--ink); color: var(--bg); opacity: .9; }
.main-nav { margin-left: auto; }
.cart { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; background: var(--heat); color: var(--heat-ink); font-weight: 700; font-size: 15px; padding: 9px 16px; border-radius: 999px; flex: none; }
.cart:hover { filter: brightness(1.05); }
.cart .badge { background: var(--surface); color: var(--heat-text); }
.badge.pulse { animation: badge-pulse .6s ease; }
@keyframes badge-pulse { 0% { transform: scale(1); } 40% { transform: scale(1.45); } 100% { transform: scale(1); } }
.cart-bar { position: fixed; left: 50%; transform: translateX(-50%); bottom: max(16px, env(safe-area-inset-bottom, 0px)); z-index: 60;
  display: flex; align-items: center; gap: 16px; width: min(560px, calc(100% - 32px)); justify-content: space-between;
  background: var(--ink); color: var(--bg); text-decoration: none; padding: 14px 20px; border-radius: 999px; box-shadow: 0 10px 30px rgba(0,0,0,.25); font-size: 15px; }
.cart-bar[hidden] { display: none; }
.cart-bar-go { color: #FF8A5C; font-weight: 700; white-space: nowrap; }
body.has-cart-bar { padding-bottom: 84px; }
@media (max-width: 480px) { .cart-bar { flex-direction: column; align-items: flex-start; gap: 2px; border-radius: 18px; } }
.badge { min-width: 22px; height: 22px; padding: 0 6px; border-radius: 999px; background: var(--heat); color: var(--heat-ink); font-size: 12px; font-weight: 700; display: inline-grid; place-items: center; font-family: var(--mono); }
.nav-toggle { display: none; appearance: none; border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); width: 44px; height: 44px; border-radius: 12px; place-items: center; cursor: pointer; }

@media (max-width: 1080px) {
  .nav-toggle { display: grid; }
  .cart { margin-left: auto; }
  .main-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    padding: 10px max(20px, env(safe-area-inset-right, 0px)) 16px max(20px, env(safe-area-inset-left, 0px)); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 14px; border-radius: var(--r); }
  .main-nav .nav-cta { margin: 6px 0 0; justify-content: center; }
}

/* ---------- Buttons ---------- */
.btn {
  appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--ink);
  background: transparent; color: var(--ink); font: inherit; font-weight: 700; font-size: 15px;
  text-decoration: none; cursor: pointer; transition: background .15s, transform .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--heat); border-color: var(--heat); color: var(--heat-ink); }
.btn.primary:hover { background: var(--heat-hover); border-color: var(--heat-hover); }
.btn.ghost { border-color: var(--line-strong); font-weight: 600; }
.btn.small { min-height: 40px; padding: 0 16px; font-size: 14px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Hero ---------- */
.hero { padding-block: 56px 40px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.6vw, 64px); font-weight: 800; letter-spacing: -.035em; line-height: 1.02; }
.hero h1 em { font-style: normal; color: var(--heat-text); }
.hero .lead { margin-top: 18px; font-size: 18px; color: var(--muted); max-width: 54ch; }
.hero .btn-row { margin-top: 28px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 24px; font-size: 14px; color: var(--muted); }
.trust span { display: inline-flex; align-items: center; gap: 8px; }
.trust span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--heat); }
.page-hero { padding-block: 40px 8px; }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 800; letter-spacing: -.03em; }
.page-hero .lead { margin-top: 14px; font-size: 17px; color: var(--muted); max-width: 62ch; }
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--ink); }

/* Hero-Visual: stilisierte Heizpatrone */
.hero-visual { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 22px; border-top: 4px solid var(--heat); }
.hv-head { margin-bottom: 12px; }
.hv-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--heat-text); }
.hv-head h2 { font-size: 22px; margin: 4px 0 6px; }
.hv-head p { margin: 0; font-size: 14px; color: var(--muted); }
.hv-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 14px; }
.hv-cta span { font-size: 13px; color: var(--muted); }
.hero-visual svg { display: block; width: 100%; height: auto; }
.hero-visual .cap { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ---------- Karten & Raster ---------- */
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 22px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
a.card { text-decoration: none; transition: transform .15s; }
a.card:hover { transform: translateY(-2px); }
.card h3 { font-size: 20px; font-weight: 800; }
.card p { color: var(--muted); font-size: 15px; }
.card .more { margin-top: auto; padding-top: 8px; font-weight: 700; font-size: 14px; color: var(--heat-text); }
.card .tag { align-self: flex-start; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--heat-soft); color: var(--heat-text); }
.card .tag.neutral { background: var(--bg); color: var(--muted); }
.card .icon { width: 44px; height: 44px; border-radius: 12px; background: var(--heat-soft); color: var(--heat-text); display: grid; place-items: center; }

.steps-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: s; }
.steps-list li { counter-increment: s; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 22px; }
.steps-list li::before { content: counter(s); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--heat-soft); color: var(--heat-text); font-weight: 800; font-family: var(--mono); margin-bottom: 12px; }
.steps-list h3 { font-size: 18px; font-weight: 800; }
.steps-list p { color: var(--muted); font-size: 15px; margin-top: 4px; }

.cta-band { background: var(--ink); color: var(--bg); border-radius: var(--r-lg); padding: 36px; display: flex; flex-wrap: wrap; gap: 20px 32px; align-items: center; justify-content: space-between; }
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; }
.cta-band p { opacity: .8; margin-top: 6px; }
.cta-band .contact { font-family: var(--mono); font-size: 15px; display: flex; flex-direction: column; gap: 4px; }

.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 24px 0 0; }
.facts div { background: var(--surface); border-radius: var(--r); box-shadow: var(--shadow); padding: 12px 14px; }
.facts dt { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.facts dd { margin: 2px 0 0; font-family: var(--mono); font-size: 17px; }

.notice { font-size: 14px; padding: 12px 16px; border-radius: var(--r); background: var(--warn-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); }

/* ---------- Formulare ---------- */
.form { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; flex-wrap: wrap; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; flex: 1 1 180px; }
.form > .field { flex: 0 0 auto; }
.field.full { flex-basis: 100%; }
.field label { font-size: 13px; font-weight: 700; color: var(--muted); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 16px; width: 100%; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: var(--r); padding: 10px 12px; min-height: 46px;
}
.field textarea { min-height: 100px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--heat); outline-offset: 0; border-color: var(--heat); }
.unit { position: relative; }
.unit input { font-family: var(--mono); padding-right: 48px; }
.unit span { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); font-family: var(--mono); font-size: 13px; color: var(--muted); pointer-events: none; }
.hp { position: absolute; left: -9999px; }
.form-note { font-size: 13px; color: var(--muted); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--heat); }

.msgs { display: flex; flex-direction: column; gap: 6px; }
.msg { font-size: 14px; padding: 9px 12px; border-radius: var(--r); border-left: 3px solid; }
.msg.ok { background: var(--ok-soft); border-color: var(--ok); }
.msg.warn { background: var(--warn-soft); border-color: var(--warn); }
.msg.err { background: var(--err-soft); border-color: var(--err); }
.done { background: var(--ok-soft); border-radius: var(--r-lg); padding: 24px; }
.done h2, .done h3 { font-size: 22px; margin-bottom: 6px; }

/* ---------- Konfigurator ---------- */
.config { display: grid; grid-template-columns: minmax(0, 1fr) 400px; gap: 28px; align-items: start; }
.steps { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.step { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 20px 20px 22px; }
.step > header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; }
.step .n { font-family: var(--mono); font-size: 12px; font-weight: 500; color: var(--heat-text); background: var(--heat-soft); border-radius: 999px; padding: 1px 9px; }
.step h2 { font-size: 18px; font-weight: 800; letter-spacing: -.01em; }
.step .hint { margin-left: auto; font-size: 13px; color: var(--muted); text-align: right; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  appearance: none; font: inherit; font-size: 15px; font-weight: 600; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 999px; padding: 8px 16px; cursor: pointer; min-height: 44px; text-align: left;
}
.chip .sub { display: block; font-size: 12px; font-weight: 500; color: var(--muted); }
.chip.mono { font-family: var(--mono); font-weight: 500; }
.chip:hover:not(:disabled) { border-color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--heat); border-color: var(--heat); color: var(--heat-ink); }
.chip[aria-pressed="true"] .sub { color: inherit; opacity: 1; }
.chip:disabled { opacity: .38; cursor: not-allowed; text-decoration: line-through; }
.sub-group { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line); }
.sub-group > .lbl { font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 8px; }
.step .note { font-size: 13.5px; color: var(--muted); margin-top: 12px; }
.step .msgs { margin-top: 12px; }
.step .row + .row { margin-top: 14px; }

.gauge { margin-top: 16px; }
.gauge .bar { position: relative; height: 10px; border-radius: 5px; background: linear-gradient(90deg, var(--badge-yellow), var(--heat) 60%, var(--badge-red)); opacity: .85; }
.gauge .pin { position: absolute; top: -5px; width: 4px; height: 20px; background: var(--ink); border-radius: 2px; transform: translateX(-2px); transition: left .25s; }
.gauge .scale { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--muted); margin-top: 4px; }
.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 14px 0 0; }
.kpi { background: var(--bg); border-radius: var(--r); padding: 8px 12px; }
.kpi dt { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.kpi dd { margin: 0; font-family: var(--mono); font-size: 18px; font-variant-numeric: tabular-nums; }

.panel { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 14px; }
.sheet { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); overflow: hidden; }
.sheet .head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 14px 18px 6px; }
.sheet .head h2 { font-size: 17px; font-weight: 800; }
.sheet .head span { font-size: 12px; color: var(--muted); }
.drawing { padding: 6px 10px 2px; }
.drawing svg { display: block; width: 100%; height: auto; }
.spec { margin: 0; padding: 4px 18px 12px; font-size: 14px; }
.spec div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.spec div:last-child { border-bottom: 0; }
.spec dt { color: var(--muted); }
.spec dd { margin: 0; font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }
.sheet .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px 18px; border-top: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 60%, var(--surface)); }
.qty { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--muted); margin-right: auto; }
.qty input { width: 86px; font-family: var(--mono); font-size: 16px; padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: var(--r); background: var(--bg); color: var(--ink); min-height: 44px; }

/* Anfrageliste */
.req-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.req-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: start; padding: 12px 14px; background: var(--bg); border-radius: var(--r); }
.req-list .t { font-weight: 700; font-size: 15px; }
.req-list .d { font-family: var(--mono); font-size: 12.5px; color: var(--muted); overflow-wrap: anywhere; margin-top: 2px; }
.req-list button { appearance: none; border: 0; background: none; color: var(--muted); cursor: pointer; font: inherit; font-size: 13px; text-decoration: underline; padding: 4px; min-height: 32px; }
.mini-list { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 18px; }
.mini-list h2 { font-size: 16px; font-weight: 800; display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.mini-list h2 span { font-family: var(--mono); font-size: 12px; color: var(--heat-text); }
.empty { font-size: 14px; color: var(--muted); }

/* ---------- Fliesstext (Ratgeber, Rechtliches) ---------- */
.prose { max-width: 68ch; }
.prose h2 { font-size: 24px; font-weight: 800; margin: 36px 0 10px; }
.prose h3 { font-size: 19px; font-weight: 800; margin: 26px 0 8px; }
.prose p, .prose ul, .prose ol { margin: 0 0 14px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.formula { font-family: var(--mono); background: var(--surface); box-shadow: var(--shadow); border-radius: var(--r); padding: 14px 16px; overflow-x: auto; margin: 0 0 14px; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 64px; border-top: 1px solid var(--line); background: var(--surface); padding-bottom: env(safe-area-inset-bottom, 0px); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); gap: 28px; padding-block: 40px 28px; font-size: 14px; color: var(--muted); }
.footer-grid p { margin-top: 8px; }
.footer-grid ul { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.footer-grid a { text-decoration: none; }
.footer-grid a:hover { color: var(--ink); }
.footer-h { font-weight: 800; color: var(--ink); }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-block: 16px 28px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid, .config { grid-template-columns: minmax(0, 1fr); }
  .panel { position: static; }
  .grid-3, .steps-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .section { padding-block: 44px; }
  .grid-3, .grid-2, .steps-list, .facts { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .step .hint { display: none; }
  .spec div { grid-template-columns: 100px minmax(0, 1fr); }
  .cta-band { padding: 26px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

/* ---------- Massskizze (Konfigurator) ---------- */
.d-lead { fill: none; stroke: var(--steel-dark); }
.d-tc { fill: none; stroke: var(--ok); }
.d-cold { fill: var(--steel); stroke: var(--ink); }
.d-hot { fill: url(#hatch); stroke: var(--ink); }
.d-hatch-bg { fill: var(--hatch-bg, var(--heat-soft)); }
.d-hatch-line { stroke: var(--badge-red, var(--heat)); }
.d-end { fill: var(--steel-dark); stroke: var(--ink); }
.d-seal { fill: var(--ink); opacity: .7; }
.d-dot { fill: var(--ok); stroke: var(--surface); }
.d-dim { stroke: var(--muted); fill: none; }
.d-arrow { fill: var(--muted); }
.d-txt { fill: var(--ink); font-family: var(--mono); }
.d-txt.d-m { fill: var(--muted); }
.d-txt.d-h { fill: var(--heat-text); }
.d-txt.d-ok { fill: var(--ok); }

/* ---------- Produktbilder ---------- */
:root { --img-bg: #EEF1F5; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --img-bg: #DCE2E9; } }
:root[data-theme="dark"] { --img-bg: #DCE2E9; }
.pimg { margin: 0; background: var(--img-bg); border-radius: var(--r-lg); aspect-ratio: 400 / 260; max-width: 100%; display: grid; place-items: center; overflow: hidden; }
.pimg img { width: 100%; height: 100%; object-fit: contain; display: block; }
.pimg img.foto { padding: 6%; mix-blend-mode: multiply; }
.card .pimg { margin: -22px -22px 6px; width: calc(100% + 44px); max-width: none; border-radius: var(--r-lg) var(--r-lg) 0 0; }
a.card .pimg img { transition: transform .3s; }
a.card:hover .pimg img { transform: scale(1.04); }
.hero-split { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 36px; align-items: center; }
.hero-split .pimg { box-shadow: var(--shadow); }
@media (max-width: 860px) { .hero-split { grid-template-columns: minmax(0, 1fr); gap: 20px; } }

/* ---------- Katalog & Gruppenseiten ---------- */
.katalog-bereich + .katalog-bereich { margin-top: 56px; }
.katalog-mehr { margin-top: 14px; font-weight: 700; }
.katalog-mehr a { color: var(--heat-text); text-decoration: none; }
.fam h3 { font-size: 19px; }
.fam-daten { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.fam-daten li { font-family: var(--mono); font-size: 12.5px; background: var(--bg); border-radius: 999px; padding: 4px 10px; color: var(--ink); }
.chips-static { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips-static li { font-size: 14px; font-weight: 600; background: var(--heat-soft); color: var(--heat-text); border-radius: 999px; padding: 6px 12px; }
.weitere-liste { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.weitere-liste > li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px 20px; align-items: center; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 16px 18px; }
.weitere-liste .t { font-weight: 800; font-size: 16px; }
.weitere-liste p { color: var(--muted); font-size: 14.5px; margin-top: 2px; }
.weitere-form { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.weitere-form .msgs { max-width: 260px; }
@media (max-width: 620px) { .weitere-liste > li { grid-template-columns: minmax(0, 1fr); } .weitere-form { align-items: flex-start; } }

/* ---------- Fotos in Familien und Weitere ---------- */
.fam .pimg { margin: -22px -22px 8px; width: calc(100% + 44px); max-width: none; aspect-ratio: 16 / 9; border-radius: var(--r-lg) var(--r-lg) 0 0; }
.weitere-liste > li { grid-template-columns: 88px minmax(0, 1fr) auto; }
.weitere-img { width: 88px; height: 66px; border-radius: var(--r); background: var(--img-bg); display: grid; place-items: center; overflow: hidden; }
.weitere-img img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.weitere-img.leer { background: var(--img-bg) url("../img/produkte/platzhalter.svg") center / 140% no-repeat; }
@media (max-width: 620px) { .weitere-liste > li { grid-template-columns: 72px minmax(0, 1fr); } .weitere-img { width: 72px; height: 54px; } .weitere-form { grid-column: 1 / -1; } }

/* ---------- Produktfilter ---------- */
.filter { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; }
.filter-arten { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-felder { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.filter-status { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; font-size: 14px; font-weight: 700; color: var(--muted); }
.filter-leer { margin: 0 0 24px; color: var(--muted); }
.katalog-bereich[hidden] + .katalog-bereich { margin-top: 0; }
@media (max-width: 860px) { .filter-felder { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .filter-felder { grid-template-columns: minmax(0, 1fr); } }

/* ---------- FAQ- und Problemlöser-Seiten ---------- */
.faq-link { display: flex; flex-direction: column; gap: 2px; margin-bottom: 28px; padding: 16px 20px; border-radius: var(--r-lg); background: var(--heat-soft); color: var(--ink); text-decoration: none; border: 1px solid color-mix(in srgb, var(--heat) 30%, transparent); }
.faq-link span { font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--heat-text); }
.faq-link:hover strong { text-decoration: underline; }
.problem h3 { font-size: 18px; }
.problem dl { margin: 6px 0 0; display: flex; flex-direction: column; gap: 8px; }
.problem dt { font-size: 12px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); }
.problem dd { margin: 2px 0 0; font-size: 15px; }
.problem div:last-child dt { color: var(--ok); }
.faq-liste { display: flex; flex-direction: column; gap: 8px; }
.faq { background: var(--surface); border-radius: var(--r); box-shadow: var(--shadow); padding: 0 18px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--heat-text); font-size: 18px; line-height: 1; }
.faq[open] summary::after { content: "−"; }
.faq p { margin: 0 0 16px; color: var(--muted); }
.auswahl { margin: 4px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; color: var(--muted); }
@media (max-width: 440px) { .cart-label { display: none; } .cart { padding: 9px 12px; } .brand small { display: none; } }

/* Watlow Authorized Distributor */
.hero-badge { display: flex; align-items: center; gap: 18px; }
.distributor-badge { width: 112px; height: 112px; flex: none; }
.hero-badge .eyebrow { line-height: 1.5; }
.footer-badge { width: 88px; height: 88px; margin-top: 12px; display: block; }
@media (max-width: 620px) { .distributor-badge { width: 84px; height: 84px; } .hero-badge { gap: 14px; } }

h1 { hyphens: auto; overflow-wrap: break-word; }
.unit-pair { display: flex; gap: 8px; }
.unit-pair input { flex: 1 1 auto; min-width: 0; font-family: var(--mono); }
.unit-pair select { flex: 0 0 auto; width: auto; }